Recalibrations With Peak Summing; Recalibration Options - Agilent Technologies 8453 Operator's Manual

7
Calibration
Recalibration
inefficient for some application, such as found in the petrochemical industry,
where the same compounds have been analyzed for many years and the
response factors for various compounds and detectors are readily available.
You create the calibration table manually by entering peaks and their response
factors into the calibration table, recalibrating the method using a standard
that contains at least one response reference peak, and selecting Delta%
update.

Recalibrations with Peak Summing

When a recalibration is performed, the retention/migration time ranges in the
Peaksum Table of the method will be updated before the actual recalibration is
done. Peak Sum recalibrations are performed in this way to ensure the delta is
incorporated into the time calculations.

Recalibration Options

You have several ways to update the responses in the calibration table with the
new calibration data.
Average
The average from all calibration runs are calculated using the following
formula
Floating Average
A weighted average for all calibration runs is calculated. The updated weight is
set in the Recalibration Settings dialog box.
156 Understanding Your Agilent ChemStation